The Iraqi government used plans to build a Baghdad subway to cover up work on underground tunnels designed to hide weapons of mass destruction, according to a man described as one of Saddam Hussein's former top scientists. Hussein Shahristani told the told a CBS network's 60 Minutes show that subway plans drawn up by several foreign firms were given to the Iraqi military to hide and move around the country's weapons of mass destruction. Shahristani's contacts now tell him that Saddam wants to use the tunnels to form a belt with deadly chemical agents around Baghdad. "Nobody can escape and...